Last Updated: 30/07/2026
Specialty and Alternative Dog Food: Your Options Explained
Wondering if natural, grain-free, or plant-based dog food is right for your pet? Explore this guide to specialty dog diets in Australia, covering key benefits, safety considerations, and nutrition facts to help you feed your dog with confidence.
Author: Dr Gillian Hill BVSc (Hons)
Reading Time: 5 minutes - short read
There are more dog food options than ever, and "specialty" or "alternative" diets are a big part of that. These are foods that go beyond standard commercial kibble, whether by using different ingredients, following a particular philosophy, or addressing a specific concern. If you're wondering what all the different types actually mean, this guide breaks each one down and points you to more detail.
If you're starting from scratch on dog nutrition, our overall dog food guide is a good place to begin.
What is natural dog food?
Natural dog food uses ingredients that come from plant, animal or mined sources without chemical alteration. The word "natural" on a label has a specific meaning under AAFCO (Association of American Feed Control Officials) guidelines, which are widely referenced in Australia. It does not mean "organic" or "raw," though some natural foods can be both.
Natural foods avoid artificial preservatives, colours and flavours. Instead, you'll see natural preservatives like tocopherols (vitamin E) or rosemary extract.
"Natural" is not the same as "nutritionally complete," so it's still important to check the label for an AAFCO or FEDIAF (European Pet Food Industry Federation) nutritional adequacy statement.
For a full breakdown of what to look for, head to our guide on natural dog food.
What is grain free dog food?
Grain free dog food replaces grains like wheat, corn and rice with alternative carbohydrate sources, typically legumes (peas, lentils, chickpeas) or starchy vegetables like sweet potato.
These diets are sometimes chosen for dogs with suspected grain sensitivities, though true grain allergies are actually uncommon in dogs. Protein is a far more frequent culprit in food allergies.
It's worth knowing that grain free diets, particularly those high in legumes, have been the subject of research into a potential link with dilated cardiomyopathy (DCM) in dogs. The US FDA flagged this in 2018, however no definitive link has been established. This doesn't mean grain free diets are unsafe, but it's a conversation worth having with your vet before switching, especially for large or giant breeds.
For more detail on what to look for (and which dogs might genuinely benefit), see our guide to grain free dog food.
What is vegan or vegetarian dog food?
Vegan dog food contains no animal-derived ingredients. Vegetarian dog food avoids meat but may include eggs or dairy. Both aim to meet a dog's complete nutritional needs through plant-based proteins and ingredients.
Dogs can theoretically thrive on a well-formulated vegan diet because they are omnivores, unlike cats, who are obligate carnivores. The operative word is "well-formulated." It requires careful attention to amino acids (especially taurine and L-carnitine), vitamins B12 and D, calcium, phosphorus and omega-3s, all of which dogs typically get more easily from animal sources.
Pet owners most often consider these diets for ethical reasons, or where a dog has multiple food allergies. WSAVA (World Small Animal Veterinary Association) guidelines recommend working with a board-certified veterinary nutritionist before committing to a plant-based diet long-term.
Get the full picture in our guide to vegan and vegetarian dog food.
What is ethical and sustainable dog food?
Ethical and sustainable dog food prioritises responsible sourcing, reduced environmental impact, and/or improved animal welfare throughout the supply chain. This can include things like certified humanely-raised proteins, sustainably caught fish, insect-based proteins (which have a much lower carbon footprint than beef), or reduced-packaging formats.
There's no single regulatory standard for "ethical" or "sustainable" in pet food in Australia, so it pays to look beyond marketing claims and check for third-party certifications or specific sourcing commitments.
For a closer look at what these claims actually mean, see our guide to ethical and sustainable dog food.
What is rotational feeding?
Rotational feeding means regularly cycling through different proteins, formats (kibble, wet, raw) and/or brands, rather than feeding the same food every day.
The main idea is variety: different ingredients may offer different nutrient profiles, and some pet owners find their dogs enjoy more texture and flavour variety too. It can also reduce the risk of a dog developing a fixed preference for one food, which makes it easier to switch if you ever need to.
It does require a slightly more gradual transition period when introducing new foods to avoid digestive upset, though dogs on rotational diets from puppyhood often adapt easily.
More on how to do it safely in our guide to rotational feeding for dogs.
What is irradiated dog food?
Irradiated dog food is food that has been treated with ionising radiation to kill bacteria like Salmonella. Unlike the other diets in this guide, irradiation is a food safety method, not a diet type.
In Australia, irradiated pet food became a regulatory concern after a 2008 outbreak of neurological disease in cats was linked to irradiated food. Australia's Department of Agriculture, Fisheries and Forestry (DAFF) continues to regulate irradiated pet food imports.
For a full safety summary and what current regulations say, see our guide to irradiated dog food.
FAQs
Specialty and alternative dog foods range from natural and grain free to vegan, ethical and sustainable. Each has its own pros, considerations and appropriate use cases. There's no one-size-fits-all answer, but understanding what each diet actually means makes it much easier to decide whether it's right for your dog. If in doubt, your vet or a veterinary nutritionist is always the best sounding board.
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History
Our experts continually monitor the health and wellness space and we update our articles when new information becomes available.
Thu 30 Jul 2026
Written by Dr Gillian Hill BVSc (Hons)Dr Gillian Hill BVSc (Hons)
Veterinarian
Dr. Gillian graduated from the University of Sydney in 2005 with a Bachelor of Veterinary Science. She worked in a number of small animal clinics, before joining the Pet Circle Vet team in 2020. Dr. Gillian has special interests in ultrasonography, surgery and behaviour. Her favourite part of being a vet is being an advocate for the animals. She loves helping owners to make the best, evidence-based decisions for their pets, and seeing the beautiful bond that people have with their fur-babies.
